BLOWTUBE
blowgun, blowpipe, blowtube, blow tube
(noun) a tube through which darts can be shot by blowing
blowtube, blow tube, blowpipe
(noun) a tube that directs air or gas into a flame to concentrate heat
Source: WordNet® 3.1
Etymology
Noun
blowtube (plural blowtubes)
A blowpipe (used in metallurgy, etc.).
(rare) A blowgun.
Source: Wiktionary
Blow"tube`, n.
1. A blowgun. Tylor.
2. A similar instrument, commonly of tin, used by boys for
discharging paper wads and other light missiles.
3. (Glassmaking)
Definition: A long wrought iron tube, on the end of which the workman
gathers a quantity of "metal" (melted glass), and through which he
blows to expand or shape it; -- called also blowing tube, and
blowpipe.
Source: Webster’s Unabridged Dictionary 1913 Edition